Die tool



FIG. 1 is a perspective of our new design for a die tool;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side view thereof, the opposite side view being a mirror image thereof; and,

FIG. 6 is a bottom view thereof. 

We claim the ornamental design for a die tool, as shown and described. 